Thomas morton



(No Model.)

T. MORTON.

RIVETING MACHINE.

Patented Apr. 14, 1885.

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UNITED STATES PArnN'r @rrrcn.

THOMAS MORTON, OF NEW YORK, N. Y.

RlVETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 315,817, dated April14, 1885.

Application filed February 27, 1855.

50 Ml whom it may concern:

Be it known that I, THOMAS MoRroN, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a new and useful Improvement in Riveting-Machines, ofwhich the following is a specification, reference being had to theaccompanying drawings.

My invention relates to an improvement in riveting-machines; and itconsists in the pe cnliar construction and combination of devices, thatwill be more fully set forth hereinafter.

In the accompanying drawings, Figure l is a side elevation of a machineembodying my invention. Fig. 2 is a front elevation of the same.

A represents a frame or standard, which extends vertically, is providedat its lower end with a horizontal arm or base, B, at its upper end witha horizontal arm, 0, and at a suitable distance above the base with anarm, D. The arms 13, O, and D are on the same side and in a verticalline. On the arm B, on its upper side, is located an anvil, E, which isadapted to be removed from the arm and replaced by another, and in theupper side of this anvil, in the center thereof, is made a countersink,e, which corresponds to the size and shape of the rivets that are to beused in the work to be riveted by the machine.

F represents a hammer-shaft that slides vertically in the arms 0 and D.To this shaft, at a suitable distance from its upper end, is fixed ahorizontal disk, G, having ratchetteeth 9 on its upper face, and fromthis disk, surrounding the hammer-shaft, projects the vertical sleevej.A coiledspring, H, is placed around the upper portion of the shaft F,and bears between the under side of the arm 0 and the upper side-of thesleeve f. The function of the spring is to keep the hammershaft normallyforced down upon the anvil. In the lower end of the hammer-shaft issocketed a hammer-head, I, in the hammer-face of which, centrallytherein, is made a conical countersink, i, that is on a vertical linewith the countersink e.

K represents a pawl that is secured to the standard A near the upper endthereof, and,

(No model.)

when the hammer-shaft is raised, engages with one of the ratchet-teeththereof.

At a suitable distance below the pawl K is a pivoted arm, L, which isconnected to the pawl by a spring, M.

N represents the end of a rotating shaft that is actuated by anysuitable machinery, (not shown,) and that extends between the standardand the hammer-shaft at a suitable height. This shaft has tappet-pins n,which, as the shaft revolves, strike against the under side of the diskG and raise the hammer-shaft against the tension of the spring H. As thetappet-pins pass beyond the disk the spring causes the hammer-shaft todescend with force upon the end of the rivet-shank.

While the hammer-shaft is being raised, and before it reaches the upwardlimit of its motion, the pawl engages with one of the teeth oftheratchet-disk, and as the hammer-shaft continues to rise causes theshaft to partially rotate. By thus partially rotating the shaft at eachblow I adapt the machine to form symmetrical conical-shaped heads to therivetshanks. One of these rivets I show at a: before the conical head isformed thereon, and at 2 when it is finished. The pivoted arm L preventsthe pawl from swinging in toward the standard far enough to clear theratchet-disk. By raising or lowering the free end of the arm L the pawlis caused to engage with the ratchet-disk at a higher or lower point inthe elevation of the hammer-shaft, and thus cause the shaft to berotated to a greater or less extent before delivering each hlow, as willbe very readily understood.

nected to the pawl for limiting the action of 100 the pawl, for thepurpose set forth, subs'tan- In testimony that I claim theforegoing as10 tially as described. my ownl have hereto affixed my signature in 2.The combination of the standard A, the presence of two witnesses. anvilsecured thereto, the vertically-recipro- 5 eating hammer-shaft havingratchet-teeth, the THOMAS MORTON.

pawl pivoted to the standard and engaging with the .ratchet-teeth,' thepivoted arm, and \Vitnesses: the spring connecting said arm to the pawl,E. G. SIGGERS, substantially as described. WM. N. MOORE.

